Disk-sharpener.



O. GREEN.

DISK SHARPENBR.

APPLICATION FILED JULY 31. 1914.

1 1 22,786., Patented Dec. 29, 1914.

Witnesses Inventor Attorneys UNITED STATES PATENT @FFICE.

OTTO GREEN, OF GENTRY, ARKANSAS.

DISK-SHARPENER.

Application filed July 31, 1914.

To all whom it may concern:

Be it known that I, O'rro GREEN, a citizen of the United States, residing at Gentry, in the county of Benton and State of Arkansas, have invented a new and useful Disk-Sharpener, of which the following is a specification.

The present invention relates to improvements in disk sharpeners, one object of the invention, being the provision of a sharpener adapted to be used for sharpening disks of disk cultivators or plows, the same permitting the disks to be readily sharpened, by merely rotating the gangs thereof and operating upon one disk at a time while the plow is inverted with the disks upward, thus rendering it unnecessary to uncouple the disks from the gangs or in any way to disassemble the same.

A further object of the present invention is the provision of a disk sharpening tool, which is provided with an ofiset portion having a clamp for holding the sharpener in proper position, the same being so posi tioned as to be readily operated relatively to the disk with one end of the device engaging the axle of the gang while the other end is manipulated by the hand of the operator.

lVith the foregoing and other objects in View which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction herein described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the inven tion.

In the drawingsFigure 1 is a view of a disk plow with the present invention applied in use thereto. Fig. 2 is a side elevation of the sharpener carrying member. Fig. 3 is an end elevation thereof. Fig. 4 is a perspective view of the sharpener 7967 86. Figs. 5 and 6 are views of the handle for rotating the gang.

Referring to the drawings, the numeral 1 Specification of Letters Patent.

Patented Dec. 29, 1914.

Serial No. 854,345.

designates the main sharpener carrying member which is provided with two oppositely disposed handles 2 and with the intermediate oflset portion 3, said offset portion 3 being slightly bowed and having passed therethrough, two bolts 4 to hold the clamping plate 5 in proper position and to hold the disk cutter or sharpener 6 in place. Thus either end 2 of the member may be used as a handle or may be disposed to engage the axle 7 of the gang plow adjacent the disk to be operated upon, as clearly illustrated in Fig. 1, so that when the crank 8 is operated to rotate the gang, one disk at a time may be operated upon with two persons performing the operation, one rotating the gang and the other operating the sharpener carrying member. With this construction it is merely necessary to reverse or turn the gang plow upside down and attach the handle to one end of the gang to be operated upon, and while the same is rotated, the second operator manipulates the sharpener carrying member so as to produce the necessary sharpening of the disks, one at a time. It is therefore evident that with the present device and at times when the disk plow is not in use, the same may be readily operated upon without unduly dismantling it thus being in commission at all times.

What is claimed is:

A disk sharpening tool, including a fiat bar having an offset portion intermediate of its ends and in the same plane as the body of the bar, a plate of substantially the same length as the straight portion of the offset portion, and two bolts connecting the plate to the offset portion and forming a clamp therewith to hold a sharpener blade upon the bar.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

OTTO GREEN.

WVitnesses C. S. WVILSON, IV. V. STELLE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

